The WindPaddle is a Pop-Up sail rig. Easy to use, compact and will not inhibit normal paddling, deep-water re-entry, Eskimo rolling, self and assisted rescues. See related article:
Wind
Paddle Kayak Sail Review. The WindPaddle is self-launching, self-standing sail that stows either on-deck or below in a small coiled/folded package that is 1/8th it's original size. Combine this with the ability to be quickly launched and doused while out on the water and you have a very easy to use sail. At 13 oz., the WindPaddle requires no boat or deck modifications for use.